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The area of square ABCD is 10 cm^2 . Show that x^2 + 6x = 1 (requires diagram which I will draw on the whiteboard).

The area of a square is the length of one side squared (multiplied by itself), so for a square with side length 3, the area will be 32 or 3 x 3, which = 9. For a square with side length x, the ...

ML
Answered by Matilda L. Maths tutor
19882 Views

How do I solve simultaneous equations? Such as 2x + 4y = 8, 3x + 2y = 8.

There are two easy ways to solve simultaneous equations. Substitution and elimination. In order to work with substitution we must rearrange one equation to be equal to either x or y. In this case, 2x+4y=8...

CT
Answered by Cameron T. Maths tutor
7094 Views

Solve the simultaneous equations x+y=3 and-x+5y=-15.

Equation 1: x+y=3Equation 2: -x+5y=-15Step 1: Check to see if any variables (x or y) can be eliminated. As there is x in equation 1 and -x in equation 2, x can be eliminated by adding the equations togeth...

KO
Answered by Katherine O. Maths tutor
3699 Views

Describe the structure of DNA

DNA is a nucleic acid. Nucleic acids are made up of 3 base units: a 5 carbon sugar (for DNA this is deoxyribose), a phosphate and a nitrogenous base. The phosphate group is covalently bonded to the 5th ca...

BM
Answered by Bethanie M. Biology tutor
3932 Views

Integrate the function y = 2x^2 + 3x + 8 with respect to x.

Answer = 2x^3/3 + 3x^2/2 + 8x + CThis is an example of numerical integration from C1. To begin to answer this question, we can integrate each term at a time. To integrate this function, we raise the power...

MC
Answered by Michael C. Maths tutor
3886 Views

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